Could be mostly yanks here, we don't have a lot of hammered coins in the new world. I will say this, from what I understand, hammered silver "looks" to the detector like a mid-conductor, so using a higher frequency 18 khz for the lf coil, and 26 - 28 khz for the hf coils might be your best bet. A good alternative might be to use Deus Fast out of the box, it is set at 18 khz (for the lf coil) mild discrimination, I like full tones vice the default 3 or 4 tones, high reactivity (3) for separation from junk targets (lower as necessary if you want to trade recovery speed and separation for depth - 2.5 seems to be a sweet spot if you are using V4 software), GB tracking works well if you do not have a lot of junk or highly mineralized soil. The difference between this and the "hot" program, besides some of the user adjustable settings, is that "Hot" and "Deus Fast" use different signal processing filters. Hot uses the v3.2 software filters and Deus Fast uses the v4 filters. So if you built the "Hot" program using Deus Fast as the starting point (instead of Hot), the detector might behave differently. Hope this helps as a starting point.